linux-kernel - Re: [PATCH 0/5] block: replace incorrect uses of GENHD_FL

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Message-ID: <200816d2-4cfe-a26d-88c8-a0cde0b8614b@huawei.com>
Date:   Thu, 12 Aug 2021 10:07:46 +0800
From:   luomeng <luomeng12@...wei.com>
To:     Christoph Hellwig <hch@...radead.org>
CC:     Luis Chamberlain <mcgrof@...nel.org>, <axboe@...nel.dk>,
        <hare@...e.de>, <bvanassche@....org>, <ming.lei@...hat.com>,
        <jack@...e.cz>, <osandov@...com>, <linux-block@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/5] block: replace incorrect uses of GENHD_FL_UP



在 2021/8/11 13:19, Christoph Hellwig 写道:
> On Wed, Aug 11, 2021 at 10:42:20AM +0800, luomeng wrote:
>> Hi:
>>     When the fuzz test injected memory allocation failed, I had this BUG_ON:
>> kernel BUG at fs/sysfs/group.c:116.
>>    The cause of the bug_ON is that the add_disk memory fails to be allocated
>> but no error processing is performed.
>>    I find your patches add error processing. So what is your next step with
>> these patches.
> I have one more pending series on top of this one I need to submit here:
> 
> http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/alloc_disk
> 
> to make sure the disk always has a valid queue reference.  After that
> Luis work to return an error from add_disk should be much easier bause
> we not have defined state.
> .
Thanks.

So how about this series, when this series will merge into linux master?

And do you submit these patches ( 
http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/alloc_disk) 
on liunx?

Luo Meng